If Else .. Select Case in VB.NET

VB.NET

1. . NET Decision making 1 Shyam N. Chawda [phone]

2. Control Statements It’s decide the flow of program 2 types Branching statements, Test Structure, Decision Structure Loop statements 2 Shyam N. Chawda 9374928879

3. Control Statements Branching Statements If , Select case Loop Statements For,Do,While 3 Shyam N. Chawda 9374928879

4. Syntax – If..else If condition Then Logic… End if If condition Then Logic… Else Logic…. End if If condition Then Logic… ElseIf condition-n Then Logic.. Else Logic… End If 4 Shyam N. Chawda 9374928879

5. If TotalMarks>150 then Logic.. End if If a=b then Logic.. Else Logic.. End if If Marks>0 and Marks<50 then Logic.. Else if Marks>=50 and Marks<100 then Logic.. Else if Marks>=100 and Marks<150 then Logic.. End if 5 Shyam N. Chawda 9374928879

6. If..else if..else..Then When it finds a True condition Else statement block, which Visual Basic.net executes if none of the conditions are True. You can have any number of ElseIf 6 Shyam N. Chawda 9374928879

7. If..else if..else..Then You can use And / Or condition with it . Example : If marks>50 and marks<100 then statements Else if marks>=100 and marks<150 then statements End if 7 Shyam N. Chawda 9374928879

8. Exercise Leap Year Odd,Even Positive , Negative Maximum,Minimum number Mark of students Between 0 - 50,50 –100 ,100-150 8 Shyam N. Chawda 9374928879

9. Select Case Whereas the If and ElseIf statements can evaluate a different expression in each statement, The Select statement evaluates a single expression only once and uses it for every comparison. 9 Shyam N. Chawda 9374928879

10. Syntax – Select Case Select Case testexpression [Case expressionlist -n [statements-n]] ... [Case Else [ elsestatements ]] End Select 10 Shyam N. Chawda 9374928879

11. Example-1 Select Performance Case 1 ' Performance is 1. Return Salary * 0.1 Case 2, 3 ' Performance is 2 or 3. Return Salary * 0.09 Case 5 To 7 ' Performance is 5, 6, or 7. Return Salary * 0.07 11 Shyam N. Chawda 9374928879

12. Example-1 Case 4, 8 To 10 ‘Performance is 4, 8, 9, or 10. Return Salary * 0.05 Case Is < 14 'Performance is 11, 12, 13. Return 100 Case Else ' Performance is < 1 or > 14. Return 0 End select 12 Shyam N. Chawda 9374928879

13. Example-2 Select Case JobPlace Case “Ahmedabad” logic… Case “ Mumbai”,”Delhi”,”Chennai ” logic.. Case Else logic.. End select 13 Shyam N. Chawda 9374928879

14. Select…Case If multiple Case statements are True, only the statements belonging to the first true Case statement are executed. Case Else clause must be the last Case clause. 14 Shyam N. Chawda 9374928879

15. Select…Case Use the To keyword to specify a range of values. The Is keyword is used to precede any comparison operators. 15 Shyam N. Chawda 9374928879

16. Exercise Enter Color name and according to it textbox color will change Enter student no according to no display message “ Good”,”Try best in next exam”,”Need to improve” 16 Shyam N. Chawda 9374928879

17. Thanks Any questions ? www.shyamsir.com Shyam N. Chawda 9374928879 17